Cheap flights from Sioux Falls to London from £469

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/1. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
21 Jan — 28 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sioux Falls to London

Enter your travel dates to find the best prices.

Cheapest flights from Sioux Falls to London
Explore the most affordable flight options available from Sioux Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 December 2025.

Sat 27/1207:30FSD - LHR
1 stop16h 25mUnited Airlines
Sat 3/113:25LHR - FSD
2 stops33h 06mUnited Airlines
Deal found 20/12£1,208
Sat 27/1211:27FSD - LHR
1 stop14h 28mLufthansa
Sat 3/111:35LHR - FSD
1 stop14h 25mLufthansa
Deal found 20/12£1,504
Sat 27/1205:00FSD - LHR
3 stops27h 35mMultiple Airlines
Sat 3/106:40LHR - FSD
2 stops23h 00mMultiple Airlines
Deal found 20/12£2,563
Sat 27/1210:41FSD - LGW
2 stops26h 14mIberia
Sat 3/119:40LGW - FSD
2 stops29h 19mIberia
Deal found 20/12£3,721

Find flight deals from Sioux Falls to London

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 December 2025.

Round-trip from

£469

Popular in

December

Cheapest in

May

Average price

£2,111
United Airlines
  • United Airlines
  • 18/1-25/1
  • 3 total stops
  • 55h 22m total
  • Sioux Falls to London
Highest demand for flights based on searches. 28% potential increase in price (£303 potential increase over avg. return price).
Cheapest flight prices on average. 11% potential price decrease (£82 potential savings vs. average return price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sioux Falls to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 December 2025.
Use the filters below to find and compare flights from Sioux Falls to London that are best for you.

Fly from

Sioux Falls

Fly to

London

Route

Depart

Return

Price

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 18/1

17:18-09:40

1 stop34h 22m

London Heathrow

Sun 25/1

06:50-21:50

2 stops21h 00m

£469

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 18/1

05:11-07:50

1 stop20h 39m

London Heathrow

Mon 26/1

08:40-23:04

2 stops20h 24m

£470

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 13/2

07:40-05:55

1 stop16h 15m

London Heathrow

Tue 17/2

13:25-17:21

2 stops33h 56m

£476

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 18/1

05:11-06:25

1 stop19h 14m

London Heathrow

Tue 27/1

10:45-23:10

1 stop18h 25m

£491

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 18/1

13:02-07:05

1 stop12h 03m

London Heathrow

Sun 25/1

11:05-19:53

1 stop14h 48m

£491

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 18/1

15:11-22:55

2 stops25h 44m

London Heathrow

Sat 24/1

19:30-21:50

2 stops32h 20m

£504

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 30/4

13:45-12:20

1 stop16h 35m

London Heathrow

Mon 4/5

17:50-17:42

2 stops29h 52m

£529

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Thu 30/4

11:20-08:40

2 stops15h 20m

London City

Mon 4/5

18:30-22:15

2 stops33h 45m

£658

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Fri 17/4

12:30-10:50

2 stops16h 20m

London Gatwick

Sun 19/4

11:30-22:12

2 stops16h 42m

£779

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Mon 15/6

10:58-07:55

2 stops14h 57m

London City

Tue 30/6

09:20-22:46

2 stops19h 26m

£879

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 22 results
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Best time to book a flight from Sioux Falls to London

Have a flexible travel schedule? Discover the best time to fly to London from Sioux Falls with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to London

How much does it cost for a return flight from Sioux Falls to London?

What’s the top stopover airport for flights from Sioux Falls to London?

Share of one-stop return flights from Sioux Falls to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Minneapolis (MSP) – chosen by Cheapflights users on 67% of one-stop itineraries from Sioux Falls to London on Cheapflights.

What’s the cheapest stopover airport for flights from Sioux Falls to London?

Average return fare for one-stop flights from Sioux Falls to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Chicago (ORD) is the most affordable one-stop option, with an average return flight price of £557.

What’s the fastest stopover option from Sioux Falls to London?

Shortest average travel time for one-stop one-way flights from Sioux Falls to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for one-stop routes: 10h 30m.

Which airport typically offers the quickest stopover for flights from Sioux Falls to London?

Average stopover duration for one-stop one-way flights from Sioux Falls to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average stopover time of 1h 28m.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Sioux Falls to London?

    For a flight from Sioux Falls to London, you will be flying from Joe Foss Field. Sioux Falls Joe Foss Field (FSD) is just 2.6 mi from the center of the city. Joe Foss Field is the only Sioux Falls airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Sioux Falls Joe Foss Field on a regular basis.

  • How long is the flight from Sioux Falls to London?

    For as low as £658, United Airlines can have you in London from Sioux Falls in 15h 20m. The distance from Sioux Falls to London is about 4205 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Sioux Falls to London?

  • Can I find deals for flights from Sioux Falls to London that include hotel bookings?

    Yes. In addition to deals on Sioux Falls to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sioux Falls to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to London.

  • Can I find deals for business class flights from Sioux Falls to London?

    Yes. Cheapflights offers flight deals from Sioux Falls to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Sioux Falls to London

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How does Cheapflights help users find flights from Sioux Falls to London?

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Why should you use Cheapflights to find cheap flight tickets from Sioux Falls to London?

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Can Cheapflights find flights from Sioux Falls to London with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sioux Falls to London, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sioux Falls to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Sioux Falls today and book when prices fit your budget.

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